Improvement in refrigerating-cars



R. ARMIGER.

Refrigerating-Car. i

N0, 163,961; Pate'ntedluneh1875'.

11 Q *g wlmessii' I ATTORNEYS.

THE GRAPHIC C0.PH 0T0 -L|TH.39 8: 41 PARK PLACE, NY-

- pointed out in the claim.

UNITED STATES PATENT QFFIGE RICHARD ARMIGER, or BALTIMORE, MARYLAND.

IMPROVEMENT IN REFRlGERATlNG-CARS.

Specification forming part of Letters Patent No. 163,961, dated J une 1,1875 application filed May 1, 1875.

To all whom it may concern:

Be it known that I, Brennan ARMIGER, of Baltimore city, State ofMaryland, have invented a new and Improved Refrigerator- Oar; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawing, forming a part of this specification, in which- Figure l is avertical section Fig. 2, a side elevation partly in section.

The invention will first be fully described. in connection with thedrawing, and then A represents the frame, and B the casing, betweenwhich is an air-space, a, while 0 is the provision-chamber, havinganother airspace, 0, next thereto. Straw-board and feltlining are placednext to the air-chambers. D is the ice-chamber, above and at the sidesof which is the air-space d. The bottom 01 of the ice-chamber slopesfrom the middle down to openings 0 e, and toward the water-tanks E E,the said bottom upon which the ice rests being made of metal. Under thisbottom the supportingpieces F are alternately higher than another, andto each alternate one is attached troughs G G, to which the sections d dof bottom 01 incline.

By this construction the impure gases which arise with the heated airand aqueous vapor from the provisions in chamber 0 strike theprovision-chamber roof or ice-chamber bottom d, where the vaporizedmixture becomes condensed, assumes the liquid form, and flows down thesections d into troughs G G. It is then carried through transversetroughs G G into longitudinal ones H.

As the car-chamber O is air-tight, and the elements which generateputrefaction are condensed into a liquid form and retained in thetroughs, the great source of mischief is removed, and the provisionswill afterward keep in a good state of preservation even at aconsiderable temperature.

As soon as any of the ice melts and takes the form of water, it flowsinto the tanks E E, thus creating a very low temperature over the wholebottom or roof al As the water-chambers, as well as the icechamber, areentirely surrounded by the non heat-conducting frame, casing, andair-spaces, this temperature will be maintained for a long time afterthe ice has melted.

Connected with the tanks may be arranged the vertical overflow-pipe I,with goose-neck cap, and the discharge-pipe J having screwcap on lowerend, so that more or less of the water may be withdrawn, if desired. Kis the double bottom of the car, between which and the casing B is anair-chamber. In all the air-spaces, if preferred, non-conductingmaterial may be employed.

It will be observed that a distinctive feature of this provision-car isthat the ice-chamber is entirely separate from the provisionchamber,both being air-tight; also, that the Whole bottom d that constitutes themetallic upper surface or roof of provision-chamber is covered withcooling ice or water, thus producing a perfect condenser of all thevapors that rise in the provision-chamber, the ice and water being madeto subserve the double purpose of refrigerator and condenser. Again, allthe drippings from the ice may be preserved, and its cooling poweremployed before its discharge, thus maintaining the desired lowtemperature from twelve to fifteen hours after all the ice may havemelted. It is, however, by means of the pipes I J, ren dered optionalwhether the drippings of the ice shall be allowed to remain or becarried off as the ice melts.

It will also be perceived that my mode of causing the moisture in theair of provisionchamber to condense and flow down into gutters G Hremoves one of the essential conditions of putrefaction, so that manyprovisions will not afterward spoil at a temperature of 80 or more;also, by not admitting any outside air, or by the total exclusionthereof, the provision chamber can be maintained at a lower temperaturethan those now known to the public with a less quantity of ice.

This invention is applicable to ice-houses, slaughter-houses, andanalogous uses. The ice and provision chambers are provided with doors,as shown in the drawing.

Having thus described my invention, what I claim as new is- Inrefrigerator-ears, a median ice-chamber, D, and a water-chamber, E, oneach side to receive the drippings thereof, the whole rest.- ing upon ametallic bottom, d, that forms the roof of an air-tightprovision-chamber, G, as shown and described, so that the ice-coldwater, which absorbs caloric slowly on the journey, may form animportant part of the coolin g medium over the provisionchamber.

RICHARD ARMIGER.

Witnesses GEO. F. BARRIERE, W. L. ARMIGER.

